I'd vote for:
- Zona's recent thread on the magazines. Good info and history peppered throughout that thread.
- An IP, OOP discussion thread
- An S&S thread
- A links thread (maybe extend the magazine thread)
Potential other sticky's
- A climbing thread
- A fit thread
- A wheelset thread
- An Independent pedaling thread
- A rally/tour thread (especially geeks recent one regarding tactics to successfully enter popular rallies)